Mr. OMPRAKASH S BHARTI

In this Dissertation Report, the performance of an air standard irreversible Otto-cycle, air standard irreversible Diesel Cycle and air standard irreversible Dual Cycle are analyzed using finite-time thermodynamics. In the model of an air standard irreversible Otto cycle model, the non-linear relation between the specific heat of the working fluid and its temperature, the friction loss computed according to the mean velocity of the piston, the internal irreversibility described by using the compression and expansion efficiencies, and the heat-transfer loss are considered. The heat leak rate between two reservoirs is considered for further analysis of irreversible Otto cycle. The effects of specific heats which are dependent on the temperatures of the model cycles are also studied. The study reveals that the effects of variable specific heat are more adverse on parameters such as power output and efficiency of the cycle model than the effect due to constant specific heats on the cycle. The relations between the power output and the compression ratio, between the thermal efficiency and the compression ratio, as well as the optimal relation between the power output and the efficiency of the cycle are indicated by numerical examples.

A model is prepared for the different types of cycles and the model is connected with the two reservoirs for investigation of effects of net heat input, ecological function, entropy generation rate on the power output and efficiency of the cycle. The power and efficiency are optimized using the ecological function. The optimal relation between the net power output and the efficiency of the cycle, Ecological function and power output, net heat input and efficiency, as well as power loss due to entropy generation rate and efficiency are indicated by numerical example. The effect of specific heats is also studied on the model of irreversible heat engines. The various results obtained in this report may provide guidance for the design of practical internal-combustion engines.

 
At Present
 
Institute
 
From
 
To
 


 
PhD Student (FTS)
 
Mech. Engg. Dept. IIT,Kanpur
 
July, 2011
 
Ongoing

PhD Supervisor: Dr. A. K. Saha

A.) JOURNALS/PAPERS

 A.1 International Journals
Hemant B Mehta and Omprakash S Bharti, Performance Analysis of an Irreversible Otto Cycle using Finite Time Thermodynamics, 
Lecture Notes in Engineering and Computer Science, DOAJ, Issue: 1, Vol. 2177, pp. 1575-1579, 2009. 

B.) CONFERENCE PUBLICATIONS

 B.1 International Conference
Hemant B Mehta and Omprakash S Bharti, Performance Analysis of an Irreversible Otto Cycle using Finite Time Thermodynamics,
International Association of Engineers (IAENG),World Congress on Engineering (WCE), U.K. London, ISBN: 978-988-17012-5-1, pp. 1575-1579, 1-3 July, 2009.

Hemant B Mehta and Omprakash S Bharti, Finite Time Thermodynamics Analysis of Power and Efficiency characteristic of the Universal Irreversible Reciprocating Heat Engines,
20th National and 9th International ISHMT-ASME Heat and Mass Transfer Conference, IIT-Bombay, paper no. 10HMT116, 4-6 January, 2010.

Hemant B Mehta and Omprakash S Bharti, Power, efficiency, entropy generation rate and ecological optimization of an irreversible Otto cycle,
20th National and 9th International ISHMT-ASME Heat and Mass Transfer Conference, IIT-Bombay, paper no. 10HMT379, 4-6 January, 2010.

Hemant B Mehta and Omprakash S Bharti, Efect of Heat transfer on the performance of an air standard Diesel Cycle, 
International Conference on Advances in Mechanical Engineering (ICAME-2009), SVNIT-Surat, Gujarat, 3rd-5th August, 2009.

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SHORT TERM TRAINING PROGRAMME/CONFERENCES/WORKSHOPS ATTENDED
C.) INTERNATIONAL CONFERENCE ATTENDED
International Conference on Advances in Mechanical Engineering (ICAME-2009), SVNIT-Surat, Gujarat,India, 3-5 August, 2009.


D.)SHORT TERM TRAINING PROGRAMME/CONFERENCES/WORKSHOPS ATTENDED


 
SR.NO.
 
PLACE
 
COURSE TITLE
 
DURATION

 
1
 
PDPU Gandhinagar, Gujarat
 
Industry-academia workshop on “Upstream Petroleum Technology” organized by PETROFED & ONGC
 
11-13 November, 2010

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MEMBERSHIP OF TECHNICAL SOCIETIES
 
Life Member in Indian Society for Technical Education (ISTE)
Membership no.: LM69063
Member/Author in EasyChair conference management system organised by IIT Bombay EasyChair Conference System
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CONTACT DETAILS
Mr. OMPRAKASH S BHARTI
PhD Student (FTS)
Room No. B-244, HALL-10,
Indian Institute of Technology 
Kanpur-208016
Uttar Pradesh
INDIA
Phone: 08765123318(M)
Email: obharti@iitk.ac.in

www.iitk.ac.in


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